施用钾肥对谷子生长发育及产量的影响

Effect of Potassium Fertilizer on Millet Development and Yield

针对长治市耕地土壤速效钾逐年下降和优质高产谷子需钾较多、土壤供钾不足的现状,进行了对谷子多点施用钾肥的试验、示范、推广。结果证明,在施用氮、磷肥的基础上,每公顷增施钾肥75～300kg,可使谷子增产477～774kg,增产率达15.68%～25.46%。

In order to solve the problems of the yearly falling of fast potassium in soil and to meet the needs of finequality and highyield millet production,an experiment of increasing potassium on many spots proved that on the basis of using nitrogen and phosphorus,an increase of 75～300kg potassium rised yield 15.68%～25.46%,477～744kg/hm2.